Split mode, pot mode, flat fee, separate pots or hybrid — five proven ways to share the boat kitty, with worked examples and a comparison table.
In short
For most crews, split mode is the fairest: everyone pays for whatever comes up, and at the end the group settles up with as few transfers as possible. If you would rather not do any maths, pot mode is simpler — everyone pays the same amount in up front and all expenses are paid from it. There is also a flat up-front fee, separate pots for diesel and food, and a hybrid; which one suits you depends mainly on how often the person doing the shopping changes.
Three days in the Adriatic. The crew has already paid two harbourmasters, a fuel stop, plus bread, vegetables, wine and three restaurants. Nobody knows any more who fronted what. On the last evening you sit in the cockpit, the notebook half empty, half smudged — and you start doing sums. That is what a kitty without a system feels like.
On any charter trip, a well-run kitty — the ship's kitty or "cruising kitty", as many crews call it — is the invisible anchor of the mood on board. Run fairly and transparently, nobody talks about it. Run sloppily, the crew talks about nothing else on the pontoon. In this article we show you five proven methods for sharing the kitty fairly — with concrete examples, pros and cons and a comparison table at the end.
The kitty is a charter crew's shared fund for every expense that benefits the whole crew: diesel, harbour fees, food, washing-up liquid, shared restaurant meals, ice cream on the quay, sparkling water and so on. What usually does not go into the kitty: your own beer at the bar, personal souvenirs, the taxi to the airport.
Three typical points of friction come up on practically every trip:
The five methods below solve these three problems in different ways. Which one suits your trip depends mainly on crew size, level of trust and trip length.
By far the most popular method among experienced crews, familiar to anyone who has used Splitwise. Whoever has an expense pays for it up front. For example: Anna pays the harbour fees in Krk (€62), Boris the fuel stop (€180), Conny the shop at Konzum (€94). All expenses are recorded in a shared list — with date, amount, description and who the expense was for (everyone, a subgroup, one person).
At the end of the trip you get a balance per person. Anna has paid out €230, but her share would be €195 — she gets €35 back. Boris has paid €180, his share would be €195 — he owes €15. A good kitty tool automatically calculates the minimum number of transfers needed to even out all balances (often just 2–3 transactions instead of seven rounds of back and forth).
The "classic" kitty: each crew member pays a fixed amount in before the trip — say €200 per person, so €1,600 in the pot for a crew of 8. The skipper (or a trusted crew member) manages the pot physically (cash) or digitally (an account). All kitty-related expenses are paid from the pot: diesel, harbour, food, restaurants. At the end, whatever is left is paid back in equal shares — or topped up if the money did not stretch.
Common on guided trips and skipper training. The skipper estimates the likely kitty requirement for the trip in advance (e.g. €250 per person for a week in the Adriatic), collects it before departure and does the bookkeeping alone. Differences are not settled after the trip — the skipper carries the risk and keeps any surplus.
Pros: Maximum simplicity for the crew — everything sorted before the trip. No bookkeeping on board, no transfers afterwards.
Cons: Requires a lot of trust in the skipper. Risk and surplus sit with the skipper — a spike in diesel prices can hurt. Little transparency for the crew.
A variant that is popular mainly on longer trips or with crews who eat very differently. Instead of one kitty there are two or three:
Pros: Fairer for crew members with particular eating habits. A clear split: boat costs are non-negotiable, galley costs are not.
Cons: Three kitties instead of one — more admin. Only works with good app support that handles categories.
The most flexible solution for mixed crews: part of the kitty is paid in as a flat amount up front (diesel, harbour, basic food — e.g. €150 per person). Everything beyond that — restaurants, impulse buys, marina laundry, sundowners — runs through split mode.
This works because the crew's basic cash flow is secured (nobody has to front €300 of diesel first), while individual expenses can still be allocated fairly. Suitable for crews with mixed budgets and trips where restaurant visits and activities are not yet planned.
| Method | Best for | Up-front payment | Effort during the trip | Settlement at the end | Fairness with uneven spending |
|---|---|---|---|---|---|
| Split mode | mixed crews, longer trips | none | log every expense | 2–3 transfers (optimised) | very high |
| Pot | close-knit crews, one week | yes, fixed amount | low | refund of remainder or top-up | medium |
| Flat fee up front | guided trips, skipper training | yes, fixed price | none for the crew | none | low, risk with the skipper |
| Separate pots | different diets, 10+ days | partly | high (two or three kitties) | per pot | high |
| Hybrid | mixed budgets, unclear restaurant plans | yes, base amount | medium | few transfers | high |
As a rule of thumb: the more your crew differs in budget, eating habits and appetite for shore leave, the further down the table your method should be. The closer-knit the crew, the more likely a simple pot will do.
Whichever method you choose — running the kitty with pen and paper or a half-finished WhatsApp list is no longer necessary in 2026. Sailto covers both common methods (split mode and pot mode), with receipt photo upload, a real-time balance for the whole crew and automatic calculation of the minimum number of transfers at the end of the trip.
You can start for free — split mode with receipt photos, balance calculation, settlement suggestion and CSV export is free for good, for any number of trips and with no crew limit. Pot mode is part of the Trip Pass, a one-off €14.99 per trip that covers the whole crew.
If your crew knows each other and you are sailing for a short week: pot mode. If you are away for longer or the crew is a mixed bunch: split mode. If you offer trips professionally as a skipper: flat fee. In Sailto you can run both main methods side by side — so you do not have to decide once and for all.
And most importantly: agree on the system explicitly at the start of the trip. "We're using split mode, and we photograph receipts straight into the app" — that one sentence on the pontoon in Trogir or Travemünde prevents 80% of all kitty arguments.
Want to try Sailto on your next trip? Start for free here — no credit card, no crew limit and for as many trips as you like.
Rule of thumb for the Mediterranean, the Adriatic and Croatia: €25–40 per person per day for diesel, harbour fees, food and the occasional restaurant meal. With lots of restaurant stops, more like €50–70. On Baltic and North Sea trips the figure is often lower because harbours are cheaper.
It comes down to trust. Traditionally the skipper keeps the kitty; in practice it is whoever volunteers and keeps tidy records. In Sailto the kitty-keeper role can be handed to someone else — the skipper does not have to be the bookkeeper as well.
On private trips with friends, the skipper pays their share like everyone else. On guided trips and skipper training, the skipper's days are usually free, because they are either paid for the job or carry the charter themselves. What matters is that the arrangement is spelled out before you cast off.
Damage to the mast, anchor or dinghy is not normally paid from the kitty but separately, via the damage clause in the charter contract and the deposit. Talk it through once before the trip and there will be no argument if it happens.
Yes, and for mixed crews that is often the best solution. A base amount for diesel, harbour fees and basic provisions goes into the pot up front; everything beyond that — restaurants, impulse buys, excursions — runs through split mode. That way nobody has to front €300 of diesel, and individual expenses are still allocated fairly.
With eight people and a naive settlement it can be more than twenty. If you net the balances and settle them efficiently, usually only two or three payments remain. Sailto calculates this settlement suggestion automatically — on the free plan too.